#poly bnha

You sigh, lips pinching together as you shoot a glance at the offending all-might phone case peaking out from underneath a crooked pillow.

"Just answer your phone, baby," you murmur, impatience tinging your tone.

Shouto doesn't hear you at first. Not until you still your fingers, brush your dry hand up the side of his face, and tap on his cheek.

"Answer it."

As though crawling his way back through a fog of pleasure, Shouto doesn't move right away. You wait patiently while his brain works to process the demand. For a handful of heaving breaths he simply stares at you.

Then, he blindly palms the bed for his phone and suspends it over his flushed face to unlock it. Only a scant few seconds pass as he scans the screen and types out a, presumably, swift reply before he's chucking it back in the direction he retrieved it from carelessly.

Shouto: busy

"There," Shouto huffs, mischief written across his face. "Done."

You roll your eyes but don't pry, sinking your fingers back into his wet heat. "Thank you."

Instantly, Shouto is bucking up into your touch, eyes fluttering closed once more. It's gratifying how sensitive he is, and you can't help but abuse such knowledge when you curl your fingers into his prostate each time your third knuckle catches on his hole, just to hear how he tries and fails to suppress a whine.

Ring.

Immediately, you freeze in annoyance.

Ring.

"Who is it?" you ask carefully, leaning over the man below you.

Ring.

Shouto swallows, a sheepish expression fleeting across his face. "Katsuki."

Ring.

You nod your chin towards his phone. "Answer it."

Ring.

Shouto grapples again for the device before sliding his finger along the screen to accept the call. Katsuki's voice blares through the tinny speakers before you even have a chance to blink.

"What the fuck do you mean 'busy,' asshole?"

"Hi, Katsuki," Shouto replies quietly, shooting you an amused glance.

"Gotta call to get any kinda answer around here I swear, you never check your damn phone. What's the point in this group chat you insisted on if I gotta call you anyway," he mutters. There’s a rustle, and you picture him readjusting the phone, habitually balancing it between his shoulder and ear as he busies his hands with another task.

"Hi, Kat," you chime in pointedly.

Katsuki's rustling pauses and you can practically hear him slotting the puzzle pieces into place. Right before he can berate you, a surprised moan flies from Shouto's mouth and the wet schtick of your fingers resuming their smooth motions fill the quiet room once more.

"Jesus," Katsuki breathes down the line. “I’m in public.”

"He's so wet," you tell Katsuki, driving your fingers in deeper. Shouto's nose scrunches and he keens, mouth dropping open on a stuttered inhale. "I wish you could see."

"Is that right?" Katsuki responds, and at the deep cadence of his voice, Shouto shudders. You can’t blame him. There’s something intoxicating about Katsuki’s voice—the rough, unpolished note of it. Katsuki knows it too, and uses his power over you both for evil.

"Mhm," you hum, the corner of your mouth twitching up as he plays along.

"Oh fuck!" Shouto gasps, hips rising from the mattress. You follow the movement, keeping your fingers lodged deep inside him as you curl them over his prostate hard. "Katsuki— ngh—"

"Thought you guys might wait until I got home."

You laugh, place a hand atop his pelvis and force his hips back down to the bed. "I'm just warming him up for you. He's all yours tonight, baby."

Shouto whines at that, throwing a hand out to clutch at your nape desperately, and the phone drops forgotten beside his bare ribcage. When you stare down the length of him splayed out for you, arousal shoots through your core like a bolt of lightning. A flush is smattered across his chest and the bright sheen of sweat smothering his skin betrays how long you've been toying with the hero beneath you.

"I think someone's looking forward to it," you murmur, dipping your head down to nose at the sweat beading in the junction of his neck, breathing in greedy lungfuls of the scent. Shouto cants his head back further in invitation and threads his fingers into your hair.

Over the line, Katsuki swears quietly and the background bustle of people fades into a familiar rush of cars before he speaks again.

“So greedy,” he murmurs, a whisper of mirth lacing his tone. “Got her fingers inside you and you’re still thinkin' 'bout me.”

Folding yourself over Shouto, you lave your tongue up the smooth column of his throat before scraping your teeth lightly under his jaw. His pulse flutters underneath your lips like a caged bird.

"Why don't you tell him, Sho?” you ask, thrusting your fingers steadily. 

“No,” he gasps, tightening the hand on your nape until you feel like a pup being scruffed.

"Tell us what you want Kat to do to you."

Katsuki swallows. "Fuckin' hell, woman."

“You’re mean,” Shouto heaves, face a bright, incriminating red when you lift your face from his neck to gauge his sincerity.

He's lying through his teeth.

Beneath the mask of persecution, you can see his delight clear as day. Without warning, you twist your wrist and Shouto’s expression shutters as though he’s been physically struck.

"I know, baby, I'm sorry" you pout, protracting your words condescendingly. "Perhaps Kat will spoil you if you ask nicely, though, hm?"

At that, Shouto tilts his head and searches blearily for his abandoned phone to focus on. "Katsuki, please," he pants.

"Please what, gorgeous?"

Shouto keens, rising from the bed like a wave. You can tell he's close—his muscled thighs cling tightly to your waist as though he's afraid you'd be so cruel as to stop. Still, something holds him back. Shouto releases an agitated little moan and shakes his head.

"C'mon half-and-half," Katsuki murmurs, his bedroom voice sounding hilariously inappropriate as it melds with the rush of traffic beyond the line. "Lemme give you what you need, yeah? All you gotta do is ask. Doin' so good for us."

"I don't know, Kat," you hum, rubbing your fingers over his prostate in short, sharp circles without giving him a chance to even breathe. "He's not being too good right now. Practically riding my fingers."

"Want you inside me," Shouto pleads, tugging you down until you're cheek to cheek. You press into the heat radiating from his skin like a cat and relish in the wobbly rumble of his voice. "Wanna be held down." When you punctuate his words by scissoring your fingers, mimicking the thick stretch of a cock, he gasps. "Please."

Pride floods your brain with such speed it makes you dizzy, and you suspect Katsuki is experiencing a similar phenomenon if his low curse in response is anything to go by. 

"So polite," Katsuki teases. His voice is thread-bare and you’re hit with a desire to see him. To know if that muscle in his jaw is jumping the way it always does when he’s turned on. "I can do that f'you sweetheart. Fuck you 'til you're beggin' me to stop. 'Til I gotta make you take it, just how you like."

It’s a wonder Shouto is calling you mean when this is the game Katsuki revels in playing. 

Shouto’s moan splinters into a tiny sob and you bite your lip, tampering down the immediate somatic reaction you have to the sound as your cunt pulses in want. 

You take pity on him, and snake an arm between your tangled bodies to fist his cock, thumbing at the mess of pre-come leaking from his tip in half an effort to distract from how badly you wish to come. 

"And she'll watch. Maybe touch herself just f'you. Moan your name like she’s the one being folded in half and fucked stupid."

In your hand, Shouto’s cock twitches and you tighten your fist, brushing a thumb under the sensitive head of his cock at the same time you curl your fingers into his prostate. His cry is instantaneous, and it lights up your insides like a forest fire to bone dry tinder.

"And when I'm done, gonna tie you up and let her use you 'til she's cryin’."

The breath gets knocked from your chest so quickly you feel winded. Drawn into the web of Katsuki’s promise, you paint the way Shouto will whimper while you ride him. How floaty he gets when overstimulated—mushy and pliant and all things you can’t stew on for too long otherwise you’ll combust into a mess of horny begging. 

"How's that sound, gorgeous?"

With a moan so close to your ear that your skin breaks out into an assemblage of goosebumps, Shouto comes. It’s never quiet with him. But it is delicate, and insistent, and he clutches at you like a lifeline—like he’s been cast out to sea with no hope of salvation. You move your wrist lazily, spinning out his orgasm until he’s weakly whining as his hips stutter into the mattress in an effort to escape. You slow, not wanting to be too mean just yet with the whole night ahead of you, and moderate yourself to barely skim your fingers along his cock. Shouto melts into the bed like a puppet having their strings severed. 

Arousal slices you in two at the dishevelled state he's in—how he seems to float in the come-down.

"Good," you reply on behalf of Shouto, who looks about thirty seconds away from drifting off despite the come splattered all over his stomach and your hand. You're surprised to find that you’re breathless. "Really good."

NSFW

Warnings: dom/sub themes, degradation and praise kinks, sadomasochism and pain kinks, vouryerism, overstim/edging, literally just fucking flithy y’all

Please note that the things I headcannon only apply if it’s something you consent to.

oof

oh god

This is gonna be nasty

But so good

I’ve seen different people say different things but my personal opinion is that Shinsou is a dom (a hard one) and Kaminari is a switch

And yes, Shinsou calls you both his kittens, you cannot change my mind, I don’t care

So there’s a few different ways I see things going

So if both you and Kaminari are feeling like bottoms then Shinsou will gladly dom you both at the same time

Shinsou definitely has a vouyer kink so he would instruct you and Kaminari on what to do to each other while he jut watched his kittens play (stop that felt so filthy to type aaaa)

Once you were both completely worn out then he’d finally step in and have his way with you both

Like I said, he is a hard dom, definitely sadistic

Honestly he’d use telling you and Denki what to do to each other as a punishment, making you overstim or edge each other till neither of you can take anymore and are begging and/or crying

Then he’d come fuck you both into the mattress

This man is going to completely and utterly demolish you (if you’re ok with that of course)

He’d be praising you both but in a way that feels so dirty, he’d degrade you both a bit with words but I think it would mostly be praise, the degrading/humiliating part is what he does to you/makes you do to each other

He’d definitely be pretty rough with both of you (always only if you consent), he’d be manhandling you guys, just throwing you around, pulling hair, choking, a little slapping if you’re up for it (I definitely think Denki is just saying)

But don’t get me wrong, he also knows how to take care of his kittens

Like he can be so soft and giving with you as well, when the situation calls for soft sex this man will give you that and he will give it so good

Just the most gentle, loving praises and soft holds and eye contact and love

Ok, next situation Shinsou and Kaminari both wanting to dom you

ok wait cause there’s actually two ways that could go, if Kaminari is feeling switchy but leaning towards dom then it would be kinda similar to the first situation, with Shinsou telling him what to do to you but he’d just be more dom with it himself and he’d still let Shinsou dom him a bit but not full on, like they’re both domming you but Shinsou takes the lead

Ok but if Kaminari is feeling full dom then god help you

I hope you have the day of tomorrow

Because Kaminari as a dom is also one sadistic mother fucker

I absolutely headcannon Kaminari as being hard and sadistic when he’s domming (I mean he’s a little fucking masochist when hes a bottom)

But yeah if it’s something you’re ok with then these men are going to destroy you

I really can’t stress how ruthless they are when they’re domming together

You’re going to get whiplash from these two because one of them is degrading the shit out of you while the other is telling you the kindest praise

“Look at you, such a filthy little whore for us to use”, “You’re so beautiful, doing so good for us baby”

But you never know which ones going to say what and they’re constantly switching roles

Yeah you’re about to get your shit rocked, there’s no other way to say it

Honestly you’re going to be barely conscious by the time they’re finally done

Alright, last variation is you and Shinsou domming Kaminari

Pretty similar to when he’s domming you with Kaminari but y’all switch places

Just demolishing little subby baby Denki

I talk about how much of a little subby baby he is in my nsfw hcs for him

As much of a sadist as he is when he’s domming completely switches to masochism when he’s a sub

He will cry and beg and he loves it, he will literally beg you two to hurt him like a whiny little boy

Baby just wants to be completely destroyed and fucked out

Gee, can you tell I’m a switch

Regardless of how it goes down the sex would honestly be so good because both of them are very giving partners

I mean don’t get me wrong, they’re gonna tease the shit out of you, but they’re both very focused on making sure all three of you feel amazing

The aftercare, oh god the aftercare

Always so cute and sweet

Doesn’t matter who topped and bottomed

Cuddles and words of affirmation for all of you, just all three of you giving and getting love

If any of you are in subspace or roughed up or out of it or whatever then whoever isn’t will give you everything you need whether that's a hot drink or a nice bath or some lotion or whatever

You all just take such good care of each other because this is a relationship built on mutual love, adoration, and respect

- You’d think that them being *slight* misogynists would make things better for you since you’re a guy, right? Absolutely not. Where they consider women “frail” or maybe “delicate,” you’re expected to be able to take what they give you, and it’s worse.

- They’re still softer towards you than they are each other, but it’s more subtle and they’d absolutely deny it if anyone called them on it.

- Since you don’t have any “mysterious woman things,” they will not ever give you a single second of privacy. Ever. It doesn’t matter if you’re just trying to have a moment of peace or if you’re in the shower, they’ll walk right in on you and then tease you if you get flustered cause “What? We’re all boys here.”

- They love stealing your clothes and forcing you into theirs (they do this regardless of gender but it’s less to tease and more for practicality and fun if you’re a guy)

- They’re a little more tsundere with you but that only really applies in public, and if you pout cute enough they’ll hold your hand and only roll their eyes and complain a tiny bit.

- Guy or girl they love you the same, and they still have the same love languages and habits to let you know they care.

NSFW

- Dick sucking chain that goes full circle

- The order changes up but the “classic” is Dabi to Shiggy to you to Keigo back to Dabi

- This also applies to handjobs, cuddle patterns, and who gets the tab when you go out

- Dabi and Shigaraki enjoy making you drink your own cum, especially from one of their mouths

- Kei prefers stuffing it into your other hole instead <3

- They all expect you to sub for them about 90% of the time, but occasionally they like to gang up on each other too and let you join in

- Since you have less holes to fill, you better be prepared for two of them to try jamming themselves into one while the other takes your mouth.